http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60030
Bug ID: 60030
Summary: [4.9 regression] ICE in simplify_subreg, at
simplify-rtx.c:5903
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: sch...@linux-m68k.org
Target: powerpc-*-*
$ gcc/xgcc -Bgcc/ ../gcc/testsuite/c-c++-common/ubsan/overflow-1.c
-Bpowerpc64-linux/32/libsanitizer/ -Bpowerpc64-linux/32/libsanitizer/ubsan/
-Lpowerpc64-linux/32/libsanitizer/ubsan/.libs -fno-diagnostics-show-caret
-fdiagnostics-color=never -O0 -fsanitize=signed-integer-overflow -lm -m32 -o
./overflow-1.exe../gcc/testsuite/c-c++-common/ubsan/overflow-1.c: In function
‘main’:
../gcc/testsuite/c-c++-common/ubsan/overflow-1.c:81:40: internal compiler
error: in simplify_subreg, at simplify-rtx.c:5903
../gcc/testsuite/c-c++-common/ubsan/overflow-1.c:12:29: note: in definition of
macro ‘CHECK’
../gcc/testsuite/c-c++-common/ubsan/overflow-1.c:81:10: note: in expansion of
macro ‘FN1’
0x1054b22b simplify_subreg(machine_mode, rtx_def*, machine_mode, unsigned int)
../../gcc/simplify-rtx.c:5902
0x1054b4df simplify_gen_subreg(machine_mode, rtx_def*, machine_mode, unsigned
int)
../../gcc/simplify-rtx.c:6123
0x102b9abf operand_subword(rtx_def*, unsigned int, int, machine_mode)
../../gcc/emit-rtl.c:1442
0x102b9cbf operand_subword_force(rtx_def*, unsigned int, machine_mode)
../../gcc/emit-rtl.c:1455
0x1048412b expand_binop(machine_mode, optab_tag, rtx_def*, rtx_def*, rtx_def*,
int, optab_methods)
../../gcc/optabs.c:1813
0x102cf023 expand_shift_1
../../gcc/expmed.c:2287
0x103a5b2f ubsan_expand_si_overflow_mul_check(gimple_statement_base*)
../../gcc/internal-fn.c:649
0x103a659b expand_internal_call(gimple_statement_base*)
../../gcc/internal-fn.c:883
0x101f2667 expand_call_stmt
../../gcc/cfgexpand.c:2188
0x101f2667 expand_gimple_stmt_1
../../gcc/cfgexpand.c:3157
0x101f2667 expand_gimple_stmt
../../gcc/cfgexpand.c:3309
0x101f351f expand_gimple_basic_block
../../gcc/cfgexpand.c:5149
0x101f58ab gimple_expand_cfg
../../gcc/cfgexpand.c:5715
0x101f58ab execute
../../gcc/cfgexpand.c:5935
